Self-locking slider



Nov. 4, 1952 1.. H. MORIN SELF-LOCKING SLIDER Filed May 11, 1950 INVENTOR LQUIS H. MORIN 4e, 49 44' ATTORNEY Patented Nov. 4, 1952 UNITED STATES PATENT OFFICE SELF-LOCKING SLIDER Louis H. Morin, Bronx, N. Y.

Application May 11, 1950, Serial No. 161,377

16 Claims. 1

This invention relates to sliders as used up stringers of separable fasteners to couple and uncouple the same. More particularly, the invention deals with a lock slider construction which will prevent movement of the slider along the stringers as and when the stringers are subjected to lateral stresses or strains, the locking action being accomplished by forming the slider of relatively movable parts which rotate about a vertical axis or pivot point near the contracted end of the slider. The rotation of these parts under the influence of a lateral strain on the stringers serves to bring the parts into binding engagement with the stringers or the scoops thereof at the contracted end of the slider to lock the latter to the stringers. Still more particularly, the invention deals with a two part slider structure of the character described, wherein the parts are held in assembled relationship in a simple and economical manner.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a plan view of one form of slider structure which I employ showing the separate parts thereof in normal operating position.

Fig. 2 is an enlarged section on the line 2-2 of Fig. 1.

Fig. 3 is a section substantially on the line 3-3 of Fig. 2 showing the slider arranged upon a pair of stringers and illustrating the slider in the locked position.

Fig. 4 is a view similar to Fig. 1 showing another form of slider which I employ.

Fig. 5 is a view similar to Fig. 1 showing another form of slider and omitting pull accessories in order to simplify the showing.

Fig. 6 is a plan view of the two parts of the slider shown in Fig. 5 in spaced relationship to each other preparatory to assemblage; and

Fig. '7 is a section on the line 'l-| of Fig. 5 showing the coupling of the slider parts by the stringer and stringer scoops on which the slider is arranged.

Fig. 8 is a sectional view showing the lower wall of a slider and illustrating still another modification.

In Figs. 1-3, I have shown one adaptation of my invention, in which the slider 10 is formed from two substantially similar parts 11 and 12, each part having upper and lower flanged walls 'wall portions. This holds the two slider parts in coupled relationship to each other while permitting swinging movement of the parts one with respect to the other on the pins formed by the pin portions 19-21, 21l--22.

Adjacent surfaces of the slider parts are spaced apart at the contracted ends thereof as illustrated by the V-slot 21 in Fig. 1 of the drawing. However, in the normal position of the slider for free movement along a pair of stringers, such as 28 and 29, Fig. 3, the slider parts assume the position shown in Fig. 1; whereas when the stringers 28 and 29 are strained in the direction of the arrows 50, Fig. 3, the upper wide end portion of the slider parts will be separated forming a deep V- recess 31 therebetween and the contracted end of the slider parts are moved inwardly in the dimotion or the arrows 32 of Fig. 3, thus urmly bearing upon and jamming coupled links or scoops 28', 29' within the contracted end of the slider. This operation prevents movement of the slider along the stringers as will be apparent.

The parts 11 and 12 of the slider have, on the upper walls thereof at the wide end, pro ecting loop portions 33, 34 which register to form a single loop or eye for the reception of a pull ring or other type of pull 35.

In big. a of the drawing, I have shown a modified form of slider 11] which differs from the slider It], simply in the following respects; namely, instead of having the loop portions 33-34, the separate parts of the slider have integral ear or lug portions 36-3'1, the bores of which are rounded or nared, as clearly seen at 31 at the righthand side of Fig. 4, for receiving the pivot pin ends 38 of a fingerpiece or pull 39. The structure of Fig. 4 is further modified to the extent that the web portions 11', 18' thereof have aiined sockets 40, 41 on abutting surfaces thereof which form a chamber for reception of a coil spring 42. This spring will operate to apply slight tension on the slider parts to frictionally retain the slider in a fixed position on the stringers without interference with normal coupling and uncoupling movement of the slider along the stringers and, on the other hand, when the slider parts are strained, in the manner illustrated in Fig. 3, the same looking efiect will be accomplished. Preferably, and as will be understood, the pin or axle portions 38 are integrally formed with the pull 39, and sufficient clearances for these pin portions are provided in the ear or lug portions 35, 37 to prevent jamming of the pin portions therein when the two parts or halves of-the slider are rotated relatively to each other.

In Figs. to 7, inclusive, I have shown another form of construction, wherein a pair of slider parts 43, as are united to form a complete'slider. The parts d3, 43' are identical and are simply used in reverse relationship to each other.

Considering Fig. 7 of the drawing, it will appear that each part has upper and lower flanged walls;

M, 45; 55', Ml, it being noted that the upper wall 45' is in reverse position to the lower wall 45.

The walls M, 44" have, in alin'ement with the outer surfaces of said walls, projecting half ring. portions 46, M) which project beyond the inner edges of said walls and have substantially semicircular apertures ll, 27. The walls 45, 45' have semi-circular grooves 48, 48 for reception of the half ring portions 48, 45, respectively, the grooves being partially defined by substantially semi-circular pin portions 59, 49 which fit in the apertures, 47, 41, respectively, to produce'a pivotal coupling of the parts 43, 453 one with respect to the other.

It will be apparent that adjacent abuttingedges or surfaces of the parts 43, 43' are bevelled, as

seen at 53', 593' to provide the V-shaped slot 5|, note Fig. 5, between these parts similar in all respects to the slot 21 of Fig. 1. w

it will be apparent that, while the parts 43, 43 can be retained in assembled form by peening over wall portions, as at 25, 26 of Fig. 2, this is not essential, as the links or scoops 52, 52' of a pair of stringers 53} 53', when coupled together within the channel 54 of the two slider parts, will maintain said parts assembled relationship with respect to each other. e 7

Considering Fig. 6 of the drawing, it willappear that, by simply moving the two parts 43, 43' one upon the other in a vertical direction, 1. e., laying one upon the other, they will bebrought into the assembled relationship seen in Fig. 7 and then, w hen assembled with a stringer, the parts are held by the scoops 52, 52 against separation. It will be apparent that the parts 43, 43' will have web portions, similarto I1 and [8 of Fig. 2. These are not shown in the present illustration. v v p H I v 7 In Fig. 8 is shown the lower wall 55 of a slider, havinga conventional fixed flange 5601; one side and a flange 5'! on the other side which is movable with respect to the flange 55. Flange 51 is pivoted as at 58 to the wall 55. When a slider of this kind is subjected to stress, as by subjecting the stringers to the kind of strain illustrated in Fig. 3, the flange 51 will rotate about the pivot 58 so that the tail portion 59 of the flange approaches the tail portion of the flange 55, thereby compressing the coupled scoops between the flanges and locking the slider to the stringers.

When the strain on the stringers is relieved, the

compressed coupled scoops tend to assume their normal position and to move the flange 51 back to its original position. Stop means in the form of a projection or lug 61' is provided on the forward or web end of the flange to limit this reverse movement, i. e., to' insure that the reverse movement does not proceed to a point beyond the original position of the flange. As shown, the lug engages the forward side edge of the wall 55. As will be understood, the upper wall of the slider will have the same construction as shown in Fig. 8, that is, it will have a fixed flange opposite the flange 56 and a movable flange opposite the flange 51. If desired, all flanges of the slider may have the construction of flange 57.

From a standpoint of. description,- it may be said that the pin portions l9, 2i; 49, 49 form pintle halves in the pivotal coupling of the slid r halves through the medium of ring or half-ring members or elements. Further, the slider has arc-shaped recesses around the half pintle portions for the reception of said members or elements.-

In a broader sense it will be seen that the invention comprises at least two abutting parts adapted together to form a slider having a double channel or web end and a'single channel or narrow end. Each of such parts includes a flangeportion. One part is pivoted to another so as to be rotatable relatively to it, the pivot point-- being located between the narrow endof the slider and the web end of the flange portions and spaced from the saidnarrow end. With heavier stringers the pivot point should be nearer to the narrow end of the slider.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A lockslider of the character described,

comprising two slider parts having abutting sur--- faces centrally and longitudinally of the slider,

portions having arc-shaped recesses, and means arranged in said recesses and extending around said pintle portions for retaining the slider parts in assembled and relatively rotatable relation-'.

ship to each other.

2. A lock slider of the character described,

comprising two slider parts having abutting sunfaces centrally and longitudinally of the slider, the slider parts collectively forming a channelled body, wide at one end and narrow at the opposed end, the channelled body being formed by spaced upper. and lower walls on ea'chsli'der part, upper and lower walls at the narrow end portion. or the slider having half pintle portions, said. upper and lower walls around the pintle portions having arc-shaped recesses, a ringin. said recesses: 8X!

tending around said. pintle portions. for retaining the slider parts in assembled and relatively.

rotatable relationshipto each other, and; means: for retaining the ring against displacement from the slider walls.

3. A lock slider oi the character described, comprising two slider parts having abutting surfaces centrally and longitudinally of the slider,-

the slider parts collectively forming a channelled body, wide at one end and narrow at the opposed end, the channelled body being formed by spaced upper and lower wallson each slider part;upp'erand lower walls at the narrow end portion of the slider having half pintle portions, said upper and lower walls around the pintle portions having;

a1c-shapedrecesses, meansarranged in said re'- cesses and extending around said-pintle portions acidififor retaining the slider parts in assembled and relatively rotatable relationship to each other, adjacent surfaces of the slider parts at the wide end portion thereof having sockets, and a coil spring disposed in said sockets and acting on each slider part to maintain said parts under constant tension.

4. A lock slider of the character described, comprising two slider parts having abutting surfaces centrally and longitudinally of the slider, the slider parts collectively forming a channelled body, wide at one end and narrow at the opposed end, the channeled body being formed by spaced Walls on each slider part, said walls at the narrow end portion of the slider having half pintle portions, said walls around the pintle portions having arc-shaped recesses, means arranged in said recesses and extending around said pintle portions for retaining the slider parts in assembled relationship to each other, and said last named means comprising half ring portions on one'wall of each slider part engaging the pintle portion on the corresponding wall of the other slider part.

5. A slider for separable fastener stringers of the character described, said slider being composed of two similar slider halves, each slider half comprising spaced walls joined at one wide end thereof in a connecting web, one wall of each half having, at the narrow end portion thereof, a projecting semi-circular ring portion, and the other wall of said half having a half pintle and a semi-circular recess around said pintlefor reception of the half ring portion of the companion slider half in coupling said slider halves together.

6. A slider for separable fastener stringers of the character described, said slider being composed of two similar slider halves, each slider half comprising spaced wallsjoined at one wide end thereof in a connecting web, one wall of each half having, at the narrow end portion thereof, a projecting semi-circular ring portion, the other wall of said half having a half pintle and a semicircular recess around said pintle for reception of the half ring portion of the companion slider half in coupling said slider halves together, adjacent surfaces of the slider halves, at the wide end portion of the slider, being normally parallel, and corresponding surfaces at the narrow end portion diverging one with respect to the other.

'7. A slider for separable fastener stringers of the character described, said slider being composed of two similar slider halves, each slider half comprising spaced walls joined at one wide end thereof in a connecting web, one wall of each half having, at the narrow end portion thereof, a projecting semi-circular ring portion, the other wall of said half having a half pintle and a semicircular recess around said pintle for reception of the half ring portion of the companion slider half in coupling said slider halves together, adjacent surfaces of the slider halves, at the wide end portion of the slider, being normally parallel, corresponding surfaces at the narrow end portion diverging one with respect to the other, and said diverging surfaces extending from the axis portion of said half pintles.

8. A look slider for separable fastener stringers, employing scoops adapted to be coupled and uncoupled by the slider in movement along the stringers, said slider comprising a channelled body defined by spaced walls joined at one wide end of the slider in a connecting web, said walls of the slider at the narrow end portion thereof having pintle portions and recesses encircling the pintle portions, the slider being divided centraliy' and longitudinally into two slider halves, adjacent surfaces of the slider halves normally abutting at the wide end portion of the slider and diverging at the narrow end portion thereof, said diverging surfaces starting at the axis of the pintle portion, and means mounted in the recesses and encircling said pintle portions for coupling the slider halves together and permitting swinging movement of the slider halves one with respect to the other on said pintle portions in automatically moving the narrow end portions of the slider halves into gripping engagement with the scoops of stringers in looking the slider thereon.

9. A lock slider for separable fastener stringers, employing scoops adapted to be coupled and uncoupled by the slider in movement along the stringers, said slider comprising a channelled body defined by spaced walls joined at one wide end of the slider in a connecting web, said walls of the slider at the narrow end portion thereof having pintle portions and recesses encircling the pintle portions, the slider being divided centrally and longitudinally into two slider halves, adjacent surfaces of the slider halves normally abutting at the wide end portion of the slider and diverging at the narrow end portion thereof, said diverging surfaces starting at the axis of the pintle portion, means mounted in the recesses and encircling said pintle portions for coupling the slider halves together, and one wall of each slider half, at the wide end portion thereof, having means for coupling a pull therewith.

10. A look slider for separable fastener stringers, employing scoops adapted to be coupled and uncoupled by the slider in movement along the stringers, said slider comprising a channelled body defined by spaced walls joined at one wide end of the slider in a connecting web, said walls of the slider at the narrow end portion thereof having pintle portions and recesses encircling the pintle portions, the slider being divided centrally and longitudinally into two slider halves, adjacent surfaces of the slider halves normally abutting at the wide end portion of the slider and diverging at the narrow end portion thereof, said diverging surfaces starting at the axis of the pintle portion, means mounted in the recesses and encircling said pintle portions for coupling the slider halves together, and tensional means for normally urging narrow end portions of the slider halves toward each other.

11. A look slider for separable fastener strin ers, employing scoops adapted to be coupled and uncoupled by the slider in movement along the stringers, said slider comprising a channelled body defined by spaced walls joined at one wide end of the slider in a connecting web, said walls of the slider at the narrow end portion thereof having pintle portions and recesses encircling the pintle portions, the slider being divided centrally and longitudinally into two slider halves, adjacent surfaces of the slider halves normally abutting at the wide end portion of the slider and diverging at the narrow end portion thereof, said diverging surfaces starting at the axis of the pintle portion, means mounted in the recesses and encircling said pintle portions for coupling the slider halves together, and means retaining said last named means against displacement from the slider halves.

12. In a flanged double-walled web-connected slider having a narrow tail end and a forward web end, the improvement comprising a pair of slider. parts, each part comprising a longitudinal n of. a fianged upper and of a flanged lower -.eonnectedtogether by a portionof a web, one partbeingadapted to be brought into longi tudinalabutting relationshipwitlithe other part to forma slider having complete .upper and lower flanged walls and a complete web, at least one part having a bevelled portion on theabuttingedges of its upper and lower walls, said beveled portion extending from the narrow end of thefslider to, a point located betweenv said narrow end and the forward ends of the wall flangeasaidpoint being spaced from the narrow endand; constituting a pivot point about which the pair of abutting slider parts are rotatable toward and from each other,and means extending from one-part to the other for rotatably se- .euring said parts together at said pivot point.

13.1In a flanged double-walled web-connected sliderhaving a narrow tail end and a forward web end, the improvement comprising a pair of attached slider parts, each part comprising a portion of aflanged upper and a flanged lower Wall connected together by a portion of a web, one, part being adapted to be brought into abutting relationship with the other part to form a-slider having complete upper and lower flanged walls, and a complete web, at least one part, hav-v ing abeveled portionon. the abutting edges of its upperand lower walls, ,sai beveled portion extending from the narrow end of the slider to a point located between said narrow end and the forward'ends of the Wall flanges, saidpoint being spaced from thenarrow endand constituting a pivot about which the pair of abutting; slider parts are rotatable toward and from each other, and means ,for retaining said pivot on the slider.

.14. An improved self-locking slider comprising at least two abutting attached parts adapted together to form a slider having a double channel end and a single channel end, each part including a flange portion, a pivot about which said parts are rotatable relatively to each other, said pivot being located-between the single channel end-,of the slider and the'double channel end of thejflange portions and being spaced from the single channel end, and means for retaining said pivoton the slider.

8 a l 5- ien i pnmved se i ogk n 11 r.compris n air of let e edt a dapte t .abut e ch Qther .t o a slider. .harme adouble thanne endaiada single .c hannel end, each part coin risin aflene nq t on ilor aid n to defin ai ehannels in the slider, ,a. pivot about which. said parts are rotatable relatively to each other, said pivot being located between the single. channel endoithe. slider, and the, double channel end of the. flange portions-and being spaced ,fromthe singl -chann end a m an' v o ta i .sa pivot on the slider.

,l 6. ,.A ,fianged double-walled WGbrQOHD-CCtGd selfelocking slider having vanarrow tail end, and

. a forward ,web end, upper. and lower flanges on one side, of the, slider being movable with respect to the flanges on the other .side of the sliders0 that ,the tail .portions of-1said .firstementioned flanges compress .coupledescoopsl within t e slider againstithe tail portions of the .oppositeflanges, a -pivot ontheslider located between saidnarrow end. of the. slider. andv the forward endsof the wall iianges, about-which. said first-mentioned flanges are movable, said pivot being spaced .from $.ae d inarrow end, means for-retaining said pivot on the slider, .said first-mentioned flanges being niova bleinan opposite direction-to their original positio nand stop means. on the, slider, for limitlil fi i las -nam d c en OIII MOBI BEFEBENCES .CITED UNITED STATES- PATENTS Nomber .Name Date 1 ,898.Z1 6 ,Schade et,al. Feb. 11 1933 '2 -.G0 A 3 1,938,419 Gilmore Jan- 1 193 2,264,302 Smith Nov. 4,,1941 2,495,539 Natzler et al, Jan. 24;, 1950 FOREIGN PATEN'I S Number Country Date 16,724 .Germany. V. 1909 676,401 Germany;

39 i. ir ce-,-.- i-., 

